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https://github.com/edk2-porting/linux-next.git
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022658beab
Currently ASoC can only add kcontrols using codec and platform component device handles. It's also desirable to add kcontrols for DAIs (i.e. McBSP) and for SoC card machine drivers too. This allows the kcontrol to have a direct handle to the parent ASoC component DAI/SoC Card/Platform/Codec device and hence easily get it's private data. This change makes snd_soc_add_controls() static and wraps it in the folowing calls (card and dai are new) :- snd_soc_add_card_controls() snd_soc_add_codec_controls() snd_soc_add_dai_controls() snd_soc_add_platform_controls() This patch also does a lot of small mechanical changes in individual codec drivers to replace snd_soc_add_controls() with snd_soc_add_codec_controls(). It also updates the McBSP DAI driver to use snd_soc_add_dai_controls(). Finally, it updates the existing machine drivers that register controls to either :- 1) Use snd_soc_add_card_controls() where no direct codec control is required. 2) Use snd_soc_add_codec_controls() where there is direct codec control. In the case of 1) above we also update the machine drivers to get the correct component data pointers from the kcontrol (rather than getting the machine pointer via the codec pointer). Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
212 lines
5.3 KiB
C
212 lines
5.3 KiB
C
/*
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* ALSA SoC CQ0093 Voice Codec Driver for DaVinci platforms
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*
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* Copyright (C) 2010 Texas Instruments, Inc
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*
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* Author: Miguel Aguilar <miguel.aguilar@ridgerun.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/platform_device.h>
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#include <linux/device.h>
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#include <linux/slab.h>
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#include <linux/clk.h>
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#include <linux/mfd/davinci_voicecodec.h>
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#include <linux/spi/spi.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/initval.h>
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static inline unsigned int cq93vc_read(struct snd_soc_codec *codec,
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unsigned int reg)
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{
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struct davinci_vc *davinci_vc = codec->control_data;
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return readl(davinci_vc->base + reg);
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}
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static inline int cq93vc_write(struct snd_soc_codec *codec, unsigned int reg,
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unsigned int value)
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{
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struct davinci_vc *davinci_vc = codec->control_data;
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writel(value, davinci_vc->base + reg);
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return 0;
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}
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static const struct snd_kcontrol_new cq93vc_snd_controls[] = {
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SOC_SINGLE("PGA Capture Volume", DAVINCI_VC_REG05, 0, 0x03, 0),
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SOC_SINGLE("Mono DAC Playback Volume", DAVINCI_VC_REG09, 0, 0x3f, 0),
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};
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static int cq93vc_mute(struct snd_soc_dai *dai, int mute)
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{
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struct snd_soc_codec *codec = dai->codec;
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u8 reg = cq93vc_read(codec, DAVINCI_VC_REG09) & ~DAVINCI_VC_REG09_MUTE;
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if (mute)
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cq93vc_write(codec, DAVINCI_VC_REG09,
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reg | DAVINCI_VC_REG09_MUTE);
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else
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cq93vc_write(codec, DAVINCI_VC_REG09, reg);
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return 0;
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}
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static int cq93vc_set_dai_sysclk(struct snd_soc_dai *codec_dai,
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int clk_id, unsigned int freq, int dir)
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{
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struct snd_soc_codec *codec = codec_dai->codec;
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struct davinci_vc *davinci_vc = codec->control_data;
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switch (freq) {
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case 22579200:
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case 27000000:
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case 33868800:
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davinci_vc->cq93vc.sysclk = freq;
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return 0;
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}
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return -EINVAL;
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}
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static int cq93vc_set_bias_level(struct snd_soc_codec *codec,
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enum snd_soc_bias_level level)
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{
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switch (level) {
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case SND_SOC_BIAS_ON:
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cq93vc_write(codec, DAVINCI_VC_REG12,
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DAVINCI_VC_REG12_POWER_ALL_ON);
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break;
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case SND_SOC_BIAS_PREPARE:
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break;
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case SND_SOC_BIAS_STANDBY:
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cq93vc_write(codec, DAVINCI_VC_REG12,
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DAVINCI_VC_REG12_POWER_ALL_OFF);
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break;
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case SND_SOC_BIAS_OFF:
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/* force all power off */
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cq93vc_write(codec, DAVINCI_VC_REG12,
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DAVINCI_VC_REG12_POWER_ALL_OFF);
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break;
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}
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codec->dapm.bias_level = level;
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return 0;
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}
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#define CQ93VC_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000)
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#define CQ93VC_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE)
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static const struct snd_soc_dai_ops cq93vc_dai_ops = {
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.digital_mute = cq93vc_mute,
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.set_sysclk = cq93vc_set_dai_sysclk,
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};
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static struct snd_soc_dai_driver cq93vc_dai = {
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.name = "cq93vc-hifi",
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.playback = {
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.stream_name = "Playback",
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.channels_min = 1,
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.channels_max = 2,
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.rates = CQ93VC_RATES,
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.formats = CQ93VC_FORMATS,},
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.capture = {
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.stream_name = "Capture",
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.channels_min = 1,
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.channels_max = 2,
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.rates = CQ93VC_RATES,
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.formats = CQ93VC_FORMATS,},
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.ops = &cq93vc_dai_ops,
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};
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static int cq93vc_resume(struct snd_soc_codec *codec)
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{
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cq93vc_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
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return 0;
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}
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static int cq93vc_probe(struct snd_soc_codec *codec)
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{
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struct davinci_vc *davinci_vc = codec->dev->platform_data;
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davinci_vc->cq93vc.codec = codec;
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codec->control_data = davinci_vc;
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/* Set controls */
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snd_soc_add_codec_controls(codec, cq93vc_snd_controls,
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ARRAY_SIZE(cq93vc_snd_controls));
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/* Off, with power on */
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cq93vc_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
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return 0;
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}
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static int cq93vc_remove(struct snd_soc_codec *codec)
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{
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cq93vc_set_bias_level(codec, SND_SOC_BIAS_OFF);
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return 0;
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}
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static struct snd_soc_codec_driver soc_codec_dev_cq93vc = {
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.read = cq93vc_read,
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.write = cq93vc_write,
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.set_bias_level = cq93vc_set_bias_level,
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.probe = cq93vc_probe,
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.remove = cq93vc_remove,
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.resume = cq93vc_resume,
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};
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static int cq93vc_platform_probe(struct platform_device *pdev)
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{
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return snd_soc_register_codec(&pdev->dev,
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&soc_codec_dev_cq93vc, &cq93vc_dai, 1);
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}
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static int cq93vc_platform_remove(struct platform_device *pdev)
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{
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snd_soc_unregister_codec(&pdev->dev);
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return 0;
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}
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static struct platform_driver cq93vc_codec_driver = {
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.driver = {
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.name = "cq93vc-codec",
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.owner = THIS_MODULE,
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},
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.probe = cq93vc_platform_probe,
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.remove = __devexit_p(cq93vc_platform_remove),
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};
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module_platform_driver(cq93vc_codec_driver);
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MODULE_DESCRIPTION("Texas Instruments DaVinci ASoC CQ0093 Voice Codec Driver");
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MODULE_AUTHOR("Miguel Aguilar");
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MODULE_LICENSE("GPL");
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